Lets see if I got this right
Eron is a computer genius that created STEM, (this is the part im not clear on - if he made it or it came to him in some other way) And it began to learn, and became smarter than Eron, started to tell Eron how to do things.
A lot more violent than I like, I hate car chases - but a pretty good movie. At the end it was starting to look like he dreamt it all, and I was about get angry because of this the whole thing was a dream nonsense. But what a cool twist - I loved it!